Answer:
The cartilaginous fish are jawed fish with paired fins, paired nostrils, scales, two-chambered hearts, and skeletons made of cartilage rather than bone. Examples of the cartilaginous fish include sharks, rays, and skates
Explanation:
6 times 10 to the negative six power meters (6 *10^-6)
unsaturated fat is a fat or fatty acid in which there is at least one double bond within the fatty acid chain.